*{margin: 0;padding: 0;}
ul,ol{list-style: none;}
img{display: block;}
h1,h2,h3{font-size: 0.16rem;font-weight: normal;}
a{text-decoration: none;color: black;}
html{height: 100%;}
body{height: 100%;}

.l{float: left;}
.r{float:right;}
.clear::after{content: '';clear: both;display: block;}

.content{width: 100%;height: 100%;position: relative;}